Type-writing machine



(NqMode L) tweets-sheet 1.v C. J. A. SJO'BERG.

TYPE WRITING MACHINE.

No. 445,128. Patented Jan.20,1891.

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Sheet 2,

(No Model.) 4 Sheets 0. J. A. SJOBERG, TYPE WRITING MACHINE. No.445,128. "2g 1 Patented JHJLZO, 1891.

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{No Model.) 7 4 Sheets-Sheet 3. G. J. A. SJOBERG. TYPE WRITING MACHINE.

No. 445,128. Patented Jan. 20, 1891'.

(N0 Modelfl 4 Sheets-Sheet 4.

G. J. A. SJOBERG. TYPE WRITING MACHINE.

vN0. 445,128. Patented Jan. 20, 1891;

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NTTTJ STATES PATENT OFFICE.

CARL J. A. SJOBERG, OF BROOKLYN, NEIV YORK, ASSIGNOR TO THE GARVINMACHINE COMPANY, OF NEIV YORK.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 445,128, dated January20, 1891.

Application filed January 27, 1890. Serial No. 338,197. (No model.)

To all whom it may concern:

Be it known that I, CARL J. A. SJ OBERG, a citizen of the United States,residing at Brooklyn, Kings county, New York, have invented certain newand useful Improvements in lyperiting Machines, fully described andrepresented in the following specification and the accompanyingdrawings, forming a part of the same.

to This invention relates to certain improvements in a type-writingmachine having a rotary type-wheel, and also having a feed-roll mountedupon a vibrating frame and oscillated to and from the type-wheel withthe pa- I 5 per. In such machine the feed-roll is pivoted upon acarriage arranged to slide longitudinally upon the vibrating frame; andthe improvements consist partly in an annular ribbon inclosing theperiphery of the type-wheel,

2o partly in the combination, with the movable carriage, offeeder-guides adapted to hold the paper against a single feeder-roll,partly in a stationary bell with a hammer suspended by a lever-arm and atappct upon the vibrating carriage to strike the lever-arm near itsfulcrum, partly in a ribbon-guard affixed to the vibrating carriage, andpartly in an improved means of forming and setting an electrotypeplateupon the type-wheel.

In the annexed drawings, Figure 1 is a plan of the machine containingthese improvements. Fig. 2 is a front elevation of the same in sectionon line 00 a: in Fig. l, with the typewheel, the ribbon, and its carrierremoved to 5 expose the parts behind them. Fig. 3 is an end elevation,partly in section, where hatched, on line y y in Fig. 1. Fig. 4 is anelevation of the type-wheel and spindle with the lettered strip removed.Fig. 5 is a vertical sec- 4,0 tion of the type-wheel with the annularribbon and its carrier. Fig. 6 is a vertical section of the annularribbon fastened to its hoops. Fig. 7 is a plan of the ribbon and hoops.Fig. 8 is an edge view, and Fig. 9 a

plan, of the circular carrier, with dotted lines in Fig. 9 indicating analternative construction. Fig. 10 is a view, broken for want of room, ofthe lettered strip adapted to fit a groove in the type-wheel. Fig. 11represents the inner or dished side of the blank for the lettered strip.Fig. 12 is a longitudinal section, and Fig. 13 atransverse section, ofsuch blank. Fig. la is a section of the feed-car riage and feed-rollwith the stationary feederguide. Fig. '15 is a section of thefeeder-carriage and feed-roll with the movable feederguide; and Fig. 16is a transverse section of the blank for the lettered strip, with apunch and die to cut the same to the desired width.

A is a wooden base; 13, the iron bed of the machine; 0, the type-wheel;D, its spindle, and E the bearing for the same.

f are bearings for the vibrating frame g, which is prdvided at itsmiddle with a carriage-guide a, having a nearly vertical slot to admitthe movable feeder-carriage 1). Carriage-guides a are also provided nearthe ends of the frame g.

The feed-roll d is mounted in bearings 0 upon the carriage and providedwith notched wheel (1, having a spring applied thereto to space thewriting when the roll is turned by hand-wheel (i The carriage isprovided, as heretofore, with along slot 1), which passes through thecentral 7 5 guide a, where it would be intersected by a pin to hold thecarriage down niovably upon the frame g.

The type-wheel G has flanges h at its margin, forming a cylindricalgroove h, (shown c in Fig. 4,) and the type are formed upon anelectrotype-strip 5, (shown in Fig. 10,) which is made of suitablelength and width to en circle the wheel in the groove h. To trim thesides and ends of such strip to fit the groove 8 5 accurately, the stripis preferably made in the electrotype-mold larger than the finishedsize, and to set such strip accurately in a die it is provided with abent flange 8' around its margin, by means of which it is accurately setinarecesseddie S. (Shown inFig. 14.) hen thus set and the die fitted ina suitable punching-machine, a punch T is applied to the die and thestrip cut to the proper length and width, as shown in Fig. 10, to fitsnugly in the 9 5 groove h.

As shown in Figs. 1, 8, and 5, the ribbon 0' is shown of annular formsuspended around the type-wheel at alittle distance from the typefaces,and thus obscures the wheel fromview in Figs. 1 and 3 by whollyinclosing the same.

The ribbon is secured by means of annular wires t to two hoops 1" and Tthe latter being larger than the'former to permit the introduction of acircular carrier 11, which is pivoted by means of a stem a in a hole orsocket in the top of the type-wheel spindle D.

The carrier may be made of a flat disk, as shown in Figs. 8 and 0,01maybe formedwith arms, as indicated by dotted lines in Fig. 9, and byfitting the stem a looselyinits socket upon the spindle D the-ribbon ismoved but slightly when the type-wheel is turned in its variouspositions.

Different portions of the ribbon are thus continually presented to theimpression of the type, and as the varying size of the hoops o" and 7'permits the ribbon to be lifted freely from the carrier, another ribbonmay be substituted therefor without hindcrauce or delay wheneverrequired.

The ribbon is made wide enough to cover the whole face of thetype-wheel, so as to operate with any number of rows of letters that maybe formed thereon.

The means for raising and lowering the type-wheel to operate with tworows of letters is not shown in the drawings, as it forms no part of thepresent invention and would obscure the illustration of the bell in Fig.

A ribbon-guard '2' is affixed to the carriageguide "a, and consists in athin leaf-spring projected upward between the ribbon and the roll d,(see Figs. 2 and 3,) andis provided with a hole m, which coincides withthe type in operation.

In Fig. 3a pinion 01 upon the spindle D is shown meshing with a segmenta, attached to a lever 01 by which the type wheel is rotated. I

Above the pinion is a toothed register-wheel N, and an acute tooth N isformed upon the vibrating frame g and penetrates at each vibration ofthe frame between two teeth of the register-wheel and operates to setthe typewheel with the type exactly opposite the openmg m.

The ribbon-guard is formed with a slot, as shown in Fig. 2, to permitthe penetration of the tooth N.

A hell I is affixed to a post I upon the bed B, adjacent to thetype-wheel, and a hammer o is hung from the bent top of the post by alever-arm o. A tappet 0 is affixed to'the right-hand end of the carriageZ) at such level as to strike the arm 0 near its fulcrum when thecarriage is nearly to the left-hand end of its stroke, and thus throwsthe hammer violently against the bell.

The carriage b in such machines is commonly provided with a rack-bar c,which is shown formed as a flange projected backward from the top edgeof the carriage above the slotb. This rack is shown in dotted lines inFig. 1 of the drawings, and a pawl t (shown in Figsl and is pivoted upona stationary post o Fig. 3, to feed the carriage one tooth at eachvibration. The feeder-guides Z are formed as leaf-springs applied to theflange t and bent backward from the same with a loop I, from the top ofwhich loop the spring is bent under the feed-roll (Z and around thefront side of the same.

By forming the spring with loop 1 great flexibility is given. to thatpart which is under the roll and which embraces the front side of thesame. The paper is inserted from the rear side of the roll over the loopZ, and is pushed between the guide and the roll,as indicated by thedotted line d in Fig. 3. The spring holds the paper in such contact withthe roll (which would be made of india-rubher or analogous material)that the paper is fed as efliciently as between two rollers.

The stationary guide shown at the righthand end of the feed-roll isshown in section in Fig. 1t, and is secured by rivet Z to the flange Themovable guide shown adjacent to the carriage-guide a in Fig. 2 is formedwith a foot Z which is extended from the flange downward over the frontside of the earriage l).

A washer Z is applied over the-foot, and a screw 20 is passed throughthe washer and through the slot Z) into agib wupon the rear side of theslot, by which the feeder-guide may be clamped in any desired positionupon the carriage.

By the application of the foot Z to the slot, as described, the footoperates as a stop to set the carriage at the beginning of each line bycontact with the carriage-guide a, as shown in Fig. 2, and thus obviatesthe need of any special stop for such purpose.

Having thus set forth the nature of my in vention, what I claim hereinis'- 1. In a type-writer, the combination, with a type-wheel, of anannular ribbon inclosing the periphery of the type-wheel, as and for thepurpose set forth. V

2. In a type-writer, the eombination,with a type-wheel, of a circularcarrier fixed upon the top of the wheel and an annular ribbon suspendedtherefrom and inclosing the periphery of the wheel, substantially asherein set forth.

3. In a type writer, the combination, with-a type-wheel, of a circularcarrier pivoted upon the top of the typewheel to turn freely thereon,and an annular ribbon suspended therefrom and inclosing the periphery ofthe typewheel, as and for the purpose set forth.

4. In a type-writer, the combination, With the type-wheel, of a circularcarrier pivoted to turn freely upon the top of the same, and an annularribbon secured at its edges to two hoops and fitted removably upon suchcarrier, as and for the purpose set forth.

5. In a type-writer, the combinatiomwith a type-Wheel and a framevibrating to and from the same, of a feeding-carriage movable upon theframe and the elastic-ribbon g'uard alfixed to the frame tovibratetherewith and provided with an aperture coincident with the type in theprinting operation, as and for the purpose set forth.

6. In a type-Writer, the combination, with the type-Wheel, the vibratingframe, and the feeding-carriage movable thereon, of the bell mountedupon the frame of the machine adjacent to the type-Wheel, the hammer 0,suspended by lever-arm 0, and the tappet 0 upon the feeding-carriage,arranged to strike the lever-arm, substantially as herein set forth.

7. In a type-writer having a type-wheel and vibrating frame withfeeder-carriage movable thereon,the combination, with thefeeder-carriage having a flange v at the top and a feed roll d rotatedabove such flange, of a feederguide spring applied to the flange andbent around the front side of the feed-roll, as and for the purpose setforth.

8. In a type-writerhaving a type wheel an vibrating frame withfeeder-carriage movable thereon, the combination, with thefeeder-carriage having a flange v at the top and a feedroll (Z rotatedabove such flange, of a feederguide consisting in a spring applied tosuch flange and formed with the loop l and exten; sion Z bent around thefront side of the feedroll, as and for the purpose set forth.

9. In a type-writer having a type-Wheel and vibrating frame withfeeder-carriage movable thereon, the combination, with thefeeder-carriage, with the vibrating frame having the carriage-guide anear its middle, of the carriage b, carrying feed-rolldand provided withslot 1), and the feeder-guide Z, bent around the front side of thefeed-roll, with foot secured over the slot by screw and gib, andoperating as a stop to the stroke of the carriage, substantially asherein set forth.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

CARL J'. A. SJOBERG.

Witnesses:

THos. S. CRANE, SLOSSON REID.

